A post shared by Penélope Cruz (@penelopecruzoficial) on May 4, 2017 at 1:51pm PDT

“I feel like I am responsible to protect their privacy. I might post a picture with a friend or a picture with Mert & Marcus (fashion photographers) here and there, or my best friend who’s also an actress (Salma Hayek).

“But there is always a line.”

Cruz, who has 2.1 million Instagram followers, also spoke about how much her priorities have changed since having children.

“I want to raise my kids and I don’t want to be away from them,” she told Stella, adding: “The first question I ask about a film is where in the world is it being shot, the next question is when, and then I look at the project.

“I don’t want projects that would represent that challenge, in terms of not being able to be together.”

She will next be seen in the big-screen adaptation of Murder On The Orient Express, due for release near the end of the year.

Off-screen she also enjoys doing hair and make-up for friends, and even stepped in to help her good friend Hayek get ready for a film premiere.

She said: “The power had gone at Salma’s house and her make-up artist couldn’t come, so she called me and said, ‘You have to get me ready for this premiere’, and I lit some candles and did her hair and make-up too.